Variable Speed Drive Systems

DC Drives

High-Performance Industrial Digital Speed Controllers & Regenerative Drive Solutions

State-of-the-Art Digital DC Drives & Motor Controllers

T-T Electric designs and manufactures comprehensive digital drive solutions engineered to optimize dynamic speed control, efficiency, and torque regulation in heavy-duty industrial applications.

With over 120 years of expertise in electric rotating machinery, our industrial drives deliver ultra-fast digital signal processing across full speed ranges. The 4-quadrant regenerative drive options allow bidirectional motor operation and return excess braking energy back into the mains power supply, significantly reducing industrial power consumption and operational footprint.

  • 2-Quadrant (Non-Regenerative) & 4-Quadrant (Regenerative) Configurations
  • Standard AC Supply Voltage up to 500 VAC (Optional 600 VAC / 690 VAC)
  • Power Rating Outputs up to 980 kW & 2250 A Output Current
  • Advanced Control Interface: 17 Digital Inputs, 8 Analogue Inputs, 7 Digital & 4 Analogue Outputs

Technical Specifications Overview

Control Technology: Fully Digital Microprocessor Control
Operating Quadrants: 2Q (Single Direction) / 4Q (Regenerative)
Mains Input Voltage: 230V – 500 VAC (Option: 600V / 690 VAC)
Max Output Power: Up to 980 kW (1300 HP)
Armature Current: Up to 2250 A DC
Overload Capacity: Up to 250% for 25 seconds
Quality Standard: ISO 9001, EASA & AEMT Compliant

Industrial DC Drive Product Lines

Specially engineered drive solutions tailored for industrial DC motors and slip ring motor retrofits.

T-T Electric TT and TT/X Industrial DC Drives

TT & TT/X DC Drives

Ultra-compact digital DC drive series designed for standard and heavy-duty industrial DC motors. Provides extremely fast torque response and precise speed regulation.

  • 5 Ultra-Compact Frame Sizes
  • Up to 2250 A Output Current
  • High Power Density Footprint
  • Integrated Field Regulator
T-T Electric TT JL/X Drives for Slip Ring Motors

TT JL/X Slip Ring Drives

Specialized industrial drives developed for slip ring induction motors. Delivers massive starting torque and smooth acceleration under extreme industrial loads.

  • 3 Robust Frame Sizes
  • Up to 1680 A Output Rating
  • Standard 150% Overload (25s)
  • Optional 250% Overload Capacity
T-T Electric Rapid Factory Dispatch Service

Fast Dispatch Availability

To minimize emergency downtime in critical production facilities, T-T Electric maintains standard drive inventory ready for fast international dispatch.

  • Dispatched within 72 Hours
  • Pre-configured Factory Testing
  • Global Technical Support
  • Replacement & Retrofit Kits

Need Technical Specs or a Customized Drive Solution?

Our experienced application engineers are ready to review your project parameters, drive ratings, and retrofit requirement. Request a detailed engineering quote or technical datasheet today.

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